Spring-wheel.



A. MOORE. Y

SPRING WHEEL.

PPLmATIc-N rum Ans. 2z. 190s.

975,630.` v Y 'Patented N0v.1`57,191lo.

ifi F- 1 Flg. 6

:1 1g. n Y

a, L .w

lsu-Esme ALFRED Manns;

Y ArroRNu;

15 wheel embodying features of the invention.

ALFRED MOQRE, F DETROIT, MICHIGAN.

SPRL-d G-WHEEL.

yTo allwhom 'it may concern:

Be'it known that I, ALFRED Moors, a

citiaen of the United States of America, residing at Detroit, in the vcounty of `Wayne 'and State of Michigan, have invented cer-V tain new and useful YImprovements in Sprmgfvvheels, of which the following` is a specilication, reference. being had therein to the accompanying drawings.

This intention relates to spring wheels for vehicles and consists inthe matters hercinafter set forth, and more particularly pointed out in the appended claim.

v In thedrawings, Figm'el is a view in side elevationwith parts broken away, of a 'Fig'. 2 is a.' view in vertical section, partially .broken away, of a wheel embodying the 1nvention. Fig. 3 is a view in detail of .a main hub iane andthe slide plate. Fig.'4 is a view 4in etail of the main hub. Fig. 5 is a view in detail showing a modiiied :i1-ranura ment of spring members of the wheel.' Fig.

6 is a view of another arrangementA ofthe 2s pRe erring to the-drawings,'l indicates a main hub provided at one end with a wide, fixed flange 2 and at the other with-aA detachableilange 3 secured in any preferred adjustable mannen as by being screwthreaded on to the hub end with a follower or check lnut 4, whereby it may be held inv any desired relation to the fixed flange,

A floating or movable hub 5 having an enlarged central aperture, encircles the fixed hub between the anges of the latter. This hub may be built up like the navel of any wheel of conventional design provided with .metallic endorface plates 6 and 7 corresponding substantially to the enlarged ortions or disks 22, 23 secured to the ub {ianges 2, 3, okes 8, felly 9, rim 10 and tire 11, all o Astandard construction, completing the wheel body. Y

A friction slide plate 12, preferably conforming in size to the enlarged portion of the ange 2y is interposed between this flange and the adjacent. hub face plate 6, an elongated slot 13 permitting its oscillation on the hub. It is locked with the adjacent hub flange to reciprocate in one direction only thereon and with -the contacting face plate to slide thereon at right angles toits motion on the flange. Any suitable ineansfor ac complishing this result may be used.

,. .l'n a preferred form of construction, two or more parallel guide grooves 14 in one side Speccaton of Letter.: Extent. vI Vggtgened Nov. 15, 1910. I Application .cd August 22, 1908. Serial No. 449,757. A i

of thc slide are engaged by mating ribs or Y lugs on the opposing surface of the adjacent tace plate and similar slots 16 on the other eric of the plate. at right angles to the grooves 14 likewiseengage ribs 17 on the dis-RSZ. This permits free oscillation of the wheel navel in the hub, limited only by the play of the latter in the apertures, and bythe frictional engagement of the contasting surfaces, while the hub and navel are positively lockedto rotate in unison.V

Radially disposed main springs 21 are secured at their inner ends to the hub flanges,

, preferably near the rims thereof, and their outer ends are connected as by collars 18 to the outer ends. of auxiliary springs 19. Either the spokes 8 act as keepers for the auxiliary springs, as inV Fig. 5 or else radial guide arms 2,0 extending from the felly, as in Fig. 6, or in the preferred form disclosed in Fig. 1, extending from the navel, are provided, the collars sliding thereon. As herein shown, the main springs are preferably disposed in pairs. The auxiliary springs are so disposed and adjusted as to close together and act as errules when the weight or load tends to stretch the main springs, and thus 'to act as rigid strutsbetween the main sprinos and hub while they expand and prevent buckling of the main springs when the latter are compressed by the load durin a portionof the revolution of the wheel. bviously, any number of main springs may be' used, according to the work to be `done.

In use, the wheel may be made more or less resilient to accommodate different con ditions of service, by setting'theadjusting liange so as to increase or decrease the frictionbetween the slide and adjacent parts which thereby act as shock absorbers to help resist abnormal stresses.

In .addition to the advantage of the-positive interlockin of the arts for transmission of torsonastrain, t e takin lip of the slack of the main sprin when t ey wouldV ordinaril Vbe comp permits the useof a very c ose coil. main -spring as the latter cannot be compressed but is under tension atalltime.

g evageao Obviously, changes in the details of coning means and the hubs, pairs of radially v struction may be made without departing disposed main springs securedy at their in- 15 Y from the spirit of the invention and I do not'. ner ends to the main hub, and radially discare to limit myself to any particular form posed auxiliary spring.; between the main 5 or arrangement of parts. springs secured at their inner ends to the What I claim as my invention s: floating hub and at their outer ends to the ,A spring Wheel having a main hub, a flosztmain springs. ing hub encircling the main hub, means in In testimony whereof I aix my signature sliding frictional engagement with each hub in pif-sence of two witnesses.

10 adapted to look the hubs positively to yturn ALFRED MOORE.

together and to permit oscillation of one on .Witnessesz to the other.l adjusting means for changing C. R. STICKNEY, the degree of frction between the interlock- A. M. DORR. 

